Extraction of copper from copper blende is achieved by
1 electrolytic reduction
2 reduction with carbon
3 self reduction
4 reduction with another metal
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In the extraction of copper from its sulphide ore, the metal is finally obtained by the reduction of cuprous oxide with copper(I) sulphide.
2Cu2S+3O2→2Cu2O+2SO2
2Cu2O+Cu2S→6Cu
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it is the correct answer
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Answer:
1) electrolytic reduction
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